Finding the Fourth Proportional to 290.99, 436.64 and 160.99
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Solution
The fourth proportional to 290.99, 436.64 and 160.99 is: 241.56
Step by Step Solution
- Step 1: Write the proportion equation
290.99 : 436.64 = 160.99 : x - Step 2: Convert to fraction form
290.99/436.64 = 160.99/x - Step 3: Cross multiply
290.99x = 436.64 × 160.99 - Step 4: Simplify right side
290.99x = 70,292.78 - Step 5: Solve for x
x = 70,292.78/290.99 - Step 6: Final answer
x = 241.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.